diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/m68k/lib/memcpy.c')
-rw-r--r-- | ANDROID_3.4.5/arch/m68k/lib/memcpy.c | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/ANDROID_3.4.5/arch/m68k/lib/memcpy.c b/ANDROID_3.4.5/arch/m68k/lib/memcpy.c deleted file mode 100644 index 10ca051d..00000000 --- a/ANDROID_3.4.5/arch/m68k/lib/memcpy.c +++ /dev/null @@ -1,88 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -#include <linux/module.h> -#include <linux/string.h> - -void *memcpy(void *to, const void *from, size_t n) -{ - void *xto = to; - size_t temp, temp1; - - if (!n) - return xto; - if ((long)to & 1) { - char *cto = to; - const char *cfrom = from; - *cto++ = *cfrom++; - to = cto; - from = cfrom; - n--; - } -#if defined(CONFIG_M68000) - if ((long)from & 1) { - char *cto = to; - const char *cfrom = from; - for (; n; n--) - *cto++ = *cfrom++; - return xto; - } -#endif - if (n > 2 && (long)to & 2) { - short *sto = to; - const short *sfrom = from; - *sto++ = *sfrom++; - to = sto; - from = sfrom; - n -= 2; - } - temp = n >> 2; - if (temp) { - long *lto = to; - const long *lfrom = from; -#if defined(CONFIG_M68000) || defined(CONFIG_COLDFIRE) - for (; temp; temp--) - *lto++ = *lfrom++; -#else - asm volatile ( - " movel %2,%3\n" - " andw #7,%3\n" - " lsrl #3,%2\n" - " negw %3\n" - " jmp %%pc@(1f,%3:w:2)\n" - "4: movel %0@+,%1@+\n" - " movel %0@+,%1@+\n" - " movel %0@+,%1@+\n" - " movel %0@+,%1@+\n" - " movel %0@+,%1@+\n" - " movel %0@+,%1@+\n" - " movel %0@+,%1@+\n" - " movel %0@+,%1@+\n" - "1: dbra %2,4b\n" - " clrw %2\n" - " subql #1,%2\n" - " jpl 4b" - : "=a" (lfrom), "=a" (lto), "=d" (temp), "=&d" (temp1) - : "0" (lfrom), "1" (lto), "2" (temp)); -#endif - to = lto; - from = lfrom; - } - if (n & 2) { - short *sto = to; - const short *sfrom = from; - *sto++ = *sfrom++; - to = sto; - from = sfrom; - } - if (n & 1) { - char *cto = to; - const char *cfrom = from; - *cto = *cfrom; - } - return xto; -} -EXPORT_SYMBOL(memcpy); |